Frederick l



Patented Aug. 2, I898. F. L. col-:s. SCREW WRENCH.

(Application filed Sept. 23, 1897.)

(No Model.)

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UNITED STATES PATENT OFFI E.

FREDERICK L. COES, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE COESWRENCH COMPANY, OF SAME PLACE.

SCREW-WRENCH.

SPECIFICATION forming part of Letters Patent No. 608,439, dated August2, 1898'.

Application filed September 23, 1897. Serial No. 652,701. (No mbd'em To00% whom it may concern.-

Be it ,known that I, FREDERICK L. Cons, a citizen of the United States,residing at WVorcesteuinthe county of .IVorcester and- State ofMassachusetts, have invented a new and useful Improvement inScrew-\Vrenches, of which the following, together with the accompanyingdrawings, is a specification sufficiently full, clear, and eXacttoenable persons skilled in the art to which this invention appertains tomake and use the same.

This invention relates to an improved construction for the handle of awrench of .the character described, the object being to .provide anefiicient and durable wrench-handle having, in combination with itsbar-shank and screw-supporting ferrule, applied reinforcepieces orfilling-strips arranged on the edge of the bar-shank after the ferruleis placed and adapted for firmly supporting the ferrule and also forfilling the space between the side scales from the bar-shank to thehandle outline along the length of the handle from the ferrule to thetip-piece, as more fully hereinafter explained.

These objects I attain by the means illustrated in the drawings, whereinFigure 1 is a side View, partly in section, showing a wrench embodyingmy invention. Fig. 2 is a rear View of the wrench, showing the back ofthe bar-shank and the outline of the handle in dotted outline. Fig. 3 isa separate perspective view of the reinforce or filling piece, and Fig.3 is a modification of the same. Fig. .4 is a transverse section at lineX X, looking upward; and Fig. 5is a section of the bar-shank andreinforce-pieces at line Y Y, Fig. 1.

In the wrench shown in the drawings the upper portion of the bar A,having the fixed aw or head a thereon, the movable jaw B, theaw-adjusting screw C, with its rosette head 0 and spindle c and thescrew-supporting ferrule F, with its step-bearing F and undercut bottomrim f, can all be made in well-known suitable form or as heretoforeemployed in the Ooes wrench. The bar is provided'with the shoulder d,against which the top end g of the ferrule F abuts when in fixedposition. The neck portion 3 of the bar-shank A is shaped to fit thehole or eye through the ferrule F, which is passed over the bar-shankand forced onto the neck 3 firmly up against the shoulder (Z, asheretofore practiced.

In accordance with my present improvement the'bar-shank A is primarilyformed straight, with parallel edges, (indicated by the broken lines 5on 'Fig. 1,) the edges being preferably transversely fiat at rightangles to the flat side-surfaces 4 of the shank. The lower end of theshank is fitted with the usual stub-tang J for receiving the cup-flangedtippiece K, to be fixed thereto by screw-threads or by riveting the endof the tang, which latter is the common practice.

I I indicate the applied reinforce or filling pieces whichI affix to thefront and rear edges of the bar-shank A after the ferrule has beenpressed onto thebar.

' The reinforce-piece I is designed to extend from the ferrule to thetip and to fill the space between the two side scales M, the innersurface being fitted to match against the edge of the bar-shank and itsouter edge or surface 7 shaped to the required contour of the handleoutline.

The adjacent attaching-surfaces on the barshank and the reinforce-piecesI can be made either plain and straight, as indicated at t on Fig.3, orwith suitablyformed countermatching projections and recesses orinterlocking lugs and notches, as indicated at I, Fig. 3, and by dottedline on Fig. 1. Its ends may be either square, as at h, to abut againstthe rims of the ferrule and tip-piece, or preferably made,as at h,wit-ha shoulder and tongue, so as to both abut against and engage under therims of the ferrule and tip, or either of them, as in any instancepreferred. These reinforce-pieces I I are adjusted upon the edges of thebar-shank after the ferrule has been placed and before the tip K is puton. They are best permanently fixed in position by solidly brazingtogether the adjacent surfaces alongthe lines 5 and, if desired, at theend adjacent to the rim f of the ferrule, thus producing a sure andreliable support against any backward thrust of the ferrule F, and alsoproviding the metal-showing surface at front and rear sides of thehadle, also serving as a seat for the side scales M, which give the sideform to the handle, as per dotted lines, Figs. 2 and 5, which sidescales maybe secured to the shank in well-known manner by the end tenonsm and m and the rivet or bolt L.

In assembling the parts the movable jaw is first slipped over the shankonto the rectangular part of the bar. The screw 0 is entered therein andits rosette head arranged in the cavity at the front of the bar. Theferrule is then passed over the shank and forced onto the neck 8 firmlyagainst the shoulder (1, its step receiving the spindle end of the screwin usual manner After the parts are thus assembled the reinforce piecesI are placed in position on the edges of the bar-shank, a thin strip 1or granules of: brass or other equivalent fusible metal or alloy beingintroduced between the adjacent surfaces at 5, and the pieces are thenclamped or temporarily secured in position with their top ends firmlyahutted against the rim fofthe ferrule. Heat is then applied for fusingthe brass or alloy and therebypermanently and solidly attaching thereinforce-pieces I to the bar-shankA by the brazing of the joint alongtheir contact-line.

In some instances when the countermatched surfaces interlock, as at I,and the ends are tongued, as at it, the brazing of the parts togethermay be omitted, the riveting of the tip-piece to the tang being dependedon to keep the parts in place.

What I claim as of my invention, and desire to secure by Letters Patent,is

1. In a wreneh-hainlle, in combination with the fiat barshank, theferrule adapted to slip over said shank and fitting upon the barshankneck, the tip-piece, and the side scales,

of a ferrule-supporting reinforce extending from the ferrule to thetip-piece, its outer edge conforming to the outline shape of the handle,its inner edge matching the edge of the bar-shank, and its width fillingthe space between the side scales; said reinforce applied to andsupported in connection with the edge of the bar-shank, its endsrespectively engaging or abutting on the tip-piece and on the ferrule,in the manner set forth.

2. In ascrew-wrench provided with the bar and fixed jaw, the movablejaw, and jaw-adjusting screw; a wrench-handle having in combination withthe screw-supporting forrule and bar, a pair of oppositely-appliedrcinforce-pieces conforming to the space between the bar-shank andhandle outline, and countermatching the edges of said bar-shank from theferrule to the tip, said reinforcepicces attached to the edges of saidbanshank below and in a manner for supporting the ferrule.

3. In combination with the wrench-barhaving the flat bar-shan k adaptedto pass through the ferrule-eye; and the ferrule fitted upon the neck ofsaid bar-shank; the rein forccpieces fitted upon the edges of bar-shankwith their ends abutting against the ferrule, and permanently attachedto said bar-shank by brazing together the adjacent surfaces along thejunction-line, substantially as and for the purpose set forth.

\Vitness my hand this 17th day of September, 1897. 1

FREDERICK Tl. GOES.

\Vitnesses:

1 ll. DEALS, Urns. II. U'UR'I'JGTGH.

